SN74LS30NG4 Equivalent & Substitute Parts

Part Overview

The SN74LS30NG4 is a NAND Gate IC with 1 channel and 8 inputs, packaged in a 14-PDIP form factor. Manufactured by Texas Instruments, this component is currently discontinued at DiGi Electronics. Due to its discontinued status, identifying functionally equivalent substitute parts is essential for design continuity and procurement planning. The SN74LS30 series logic gate remains widely used in legacy and new designs requiring 8-input NAND functionality within the 74LS TTL logic family.

Substiute Parts

SN74LS30NG4

Texas InstrumentsIn Stock: 968SN74LS30NG4 Datasheet

Current PartRFQ

SN74LS30N

onsemiIn Stock: 3784SN74LS30N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74LS30NG4 is determined by strict adherence to the following electrical and mechanical parameters:

• Logic Function: NAND Gate with 1 channel and 8 inputs
• Supply Voltage Range: 4.75V ~ 5.25V
• Output Current Specifications: 400µA (high), 8mA (low)
• Input Logic Levels: Low 0.8V, High 2V
• Propagation Delay: 20ns maximum at 5V with 15pF load
• Operating Temperature Range: 0°C ~ 70°C
• Package Type: 14-DIP (0.300", 7.62mm) through-hole mounting
• Series Classification: 74LS TTL logic family

The SN74LS30N from onsemi meets all electrical and mechanical substitution criteria for the SN74LS30NG4, maintaining functional equivalence within the 74LS series.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS30N from onsemi is a direct functional equivalent to the SN74LS30NG4. Both components share identical electrical specifications, logic function, and physical packaging. Selection between these parts should be based on:

• Availability: The SN74LS30N currently has 3750 units in stock, compared to 922 units of the SN74LS30NG4.
• Compliance Status: The SN74LS30NG4 is ROHS3 compliant, while the SN74LS30N is RoHS non-compliant. Design requirements regarding RoHS compliance must be evaluated before substitution.
• Product Status: Both parts are discontinued or obsolete, indicating limited future availability. Long-term procurement planning should consider alternative logic gate solutions if extended production runs are required.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS30N directly replace the SN74LS30NG4 in existing designs?

A: Yes, the SN74LS30N is electrically and mechanically equivalent. Both components have identical logic function, supply voltage range, output current specifications, input logic levels, propagation delay, operating temperature range, and 14-DIP package dimensions. Direct pin-for-pin substitution is possible.

Q: What is the primary difference between these two parts?

A: The main differences are manufacturer (Texas Instruments vs. onsemi) and RoHS compliance status. The SN74LS30NG4 is ROHS3 compliant, while the SN74LS30N is RoHS non-compliant. Both parts are discontinued or obsolete.

Q: Are there any package or pinout differences?

A: No. Both the SN74LS30NG4 and SN74LS30N use the 14-DIP (0.300", 7.62mm) through-hole package with identical pinout and mechanical dimensions.

Q: What should I consider when selecting between these substitutes?

A: Consider RoHS compliance requirements for your application. If RoHS compliance is mandatory, the SN74LS30NG4 is the appropriate choice. If RoHS compliance is not required, the SN74LS30N offers better current availability. Both parts share identical electrical performance.

Q: Are these parts suitable for new designs?

A: Both the SN74LS30NG4 and SN74LS30N are discontinued or obsolete. For new designs requiring 8-input NAND gate functionality, evaluation of alternative logic gate solutions from current product lines is recommended to ensure long-term supply chain viability.